Williams understands our responsibility to reduce our own carbon footprint and consistently monitor and report our emissions. Criteria emissions (NOx, CO, VOCs, PM, SO2) from our facilities are tracked and reported annually to state and federal regulatory agencies using mandated protocols, testing methods, and calculation methodologies.
We prepare and submit an annual greenhouse gas inventory to the Environmental Protection Agency for our midstream gathering, natural gas processing and interstate transmission and storage operations. Combusted, vented and fugitive greenhouse gas emissions are tracked and reported to EPA using prescribed methodologies.
Over the past five years, we have reduced our methane emissions from gas processing plants and transmission compressor stations by more than 50 percent. Over the same period, the throughput through these facilities increased 20 percent.